• Product Advantages: Positive and negative tooth discs, chain drop prevention. Suitable for AM/XC bicycle modification single disc, can reduce weight. The weight can be reduced by approximately 1kg
• Waterproof and rust-proof Fearless of wind and drain
• Lead Chain Design Shifting smooth: Lead chain design, chain guide tooth shape, not easy to drop the chain Quickly complete gear shifting operations
• CNC technology: Lightweight aluminum alloy CNC technology, strong rigidity, high hardness structural stability, intense trampling without deformation, greatly improved durability
• Effectively protecting the bicycle frame prevent scratching the surface easy to clean glue is not easy to remain after tearing

Specifications:

• Thickness: 4MM
• Process: CNC machining process
• Weight: 38T round 
• Material: aluminum alloy
• BCD: 104MM 
• 104BCD Number of teeth: 38T